400550353357 has 32 divisors (see below), whose sum is σ = 503140135680. Its totient is φ = 309780357120.

The previous prime is 400550353349. The next prime is 400550353363. The reversal of 400550353357 is 753353055004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 400550353357 - 2³ = 400550353349 is a prime.

It is a super-2 number, since 2×400550353357² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400550353327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5579869 + ... + 5651197.

It is an arithmetic number, because the mean of its divisors is an integer number (15723129240).

Almost surely, 2^400550353357 is an apocalyptic number.

It is an amenable number.

400550353357 is a deficient number, since it is larger than the sum of its proper divisors (102589782323).

400550353357 is a wasteful number, since it uses less digits than its factorization.

400550353357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71893.

The product of its (nonzero) digits is 472500, while the sum is 40.

The spelling of 400550353357 in words is "four hundred billion, five hundred fifty million, three hundred fifty-three thousand, three hundred fifty-seven".