400070298 has 16 divisors (see below), whose sum is σ = 817165440. Its totient is φ = 130519296.

The previous prime is 400070291. The next prime is 400070309. The reversal of 400070298 is 892070004.

It is not an unprimeable number, because it can be changed into a prime (400070291) 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, 709063 + ... + 709626.

It is an arithmetic number, because the mean of its divisors is an integer number (51072840).

Almost surely, 2^400070298 is an apocalyptic number.

400070298 is an abundant number, since it is smaller than the sum of its proper divisors (417095142).

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

400070298 is a wasteful number, since it uses less digits than its factorization.

400070298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418741.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 400070298 is about 20001.7573727910. The cubic root of 400070298 is about 736.8494605408.

The spelling of 400070298 in words is "four hundred million, seventy thousand, two hundred ninety-eight".