400000000026 has 64 divisors (see below), whose sum is σ = 895097972736. Its totient is φ = 118118179200.

The previous prime is 400000000019. The next prime is 400000000061. The reversal of 400000000026 is 620000000004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1059670 + ... + 1386686.

It is an arithmetic number, because the mean of its divisors is an integer number (13985905824).

Almost surely, 2^400000000026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400000000026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447548986368).

400000000026 is an abundant number, since it is smaller than the sum of its proper divisors (495097972710).

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

400000000026 is a wasteful number, since it uses less digits than its factorization.

400000000026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327507.

The product of its (nonzero) digits is 48, while the sum is 12.

The spelling of 400000000026 in words is "four hundred billion, twenty-six", and thus it is an aban number.