290470428720 has 120 divisors (see below), whose sum is σ = 1009134406800. Its totient is φ = 74787783168.

The previous prime is 290470428649. The next prime is 290470428763. The reversal of 290470428720 is 27824074092.

290470428720 is a `hidden beast` number, since 2 + 90 + 4 + 70 + 428 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6934830 + ... + 6976589.

It is an arithmetic number, because the mean of its divisors is an integer number (8409453390).

Almost surely, 2^290470428720 is an apocalyptic number.

290470428720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290470428720 is an abundant number, since it is smaller than the sum of its proper divisors (718663978080).

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

290470428720 is a wasteful number, since it uses less digits than its factorization.

290470428720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13911467 (or 13911458 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 290470428720 in words is "two hundred ninety billion, four hundred seventy million, four hundred twenty-eight thousand, seven hundred twenty".