290168742 has 16 divisors (see below), whose sum is σ = 599058432. Its totient is φ = 93602760.

The previous prime is 290168737. The next prime is 290168743. The reversal of 290168742 is 247861092.

It is a self number, because there is not a number n which added to its sum of digits gives 290168742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290168743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779838 + ... + 780209.

It is an arithmetic number, because the mean of its divisors is an integer number (37441152).

Almost surely, 2^290168742 is an apocalyptic number.

290168742 is an abundant number, since it is smaller than the sum of its proper divisors (308889690).

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

290168742 is a wasteful number, since it uses less digits than its factorization.

290168742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560083.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 290168742 is about 17034.3400811420. The cubic root of 290168742 is about 662.0389516546.

The spelling of 290168742 in words is "two hundred ninety million, one hundred sixty-eight thousand, seven hundred forty-two".