290001628 has 12 divisors (see below), whose sum is σ = 580003312. Its totient is φ = 124286400.

The previous prime is 290001619. The next prime is 290001629. The reversal of 290001628 is 826100092.

It is a happy number.

290001628 is an admirable number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 10357201 = 290001628 / (2 + 9 + 0 + 0 + 0 + 1 + 6 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 290001596 and 290001605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290001629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5178573 + ... + 5178628.

Almost surely, 2^290001628 is an apocalyptic number.

290001628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

290001628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

290001628 is a wasteful number, since it uses less digits than its factorization.

290001628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10357212 (or 10357210 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 290001628 is about 17029.4341655852. The cubic root of 290001628 is about 661.9118334100.

It can be divided in two parts, 29000 and 1628, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 290001628 in words is "two hundred ninety million, one thousand, six hundred twenty-eight".