400038913246 has 12 divisors (see below), whose sum is σ = 698027083488. Its totient is φ = 171445248492.

The previous prime is 400038913237. The next prime is 400038913273. The reversal of 400038913246 is 642319830004.

It is a happy number.

It is a super-2 number, since 2×400038913246² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400038913199 and 400038913208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2041014766 + ... + 2041014961.

It is an arithmetic number, because the mean of its divisors is an integer number (58168923624).

Almost surely, 2^400038913246 is an apocalyptic number.

400038913246 is a deficient number, since it is larger than the sum of its proper divisors (297988170242).

400038913246 is a wasteful number, since it uses less digits than its factorization.

400038913246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082029743 (or 4082029736 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 400038913246 in words is "four hundred billion, thirty-eight million, nine hundred thirteen thousand, two hundred forty-six".