400036740369 has 16 divisors (see below), whose sum is σ = 609589539840. Its totient is φ = 228588768720.

The previous prime is 400036740343. The next prime is 400036740373. The reversal of 400036740369 is 963047630004.

It is not a de Polignac number, because 400036740369 - 2¹⁵ = 400036707601 is a prime.

It is a super-2 number, since 2×400036740369² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400036740369.

It is not an unprimeable number, because it can be changed into a prime (400036790369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1738854 + ... + 1955424.

It is an arithmetic number, because the mean of its divisors is an integer number (38099346240).

Almost surely, 2^400036740369 is an apocalyptic number.

It is an amenable number.

400036740369 is a deficient number, since it is larger than the sum of its proper divisors (209552799471).

400036740369 is a wasteful number, since it uses less digits than its factorization.

400036740369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304540.

The product of its (nonzero) digits is 326592, while the sum is 42.

The spelling of 400036740369 in words is "four hundred billion, thirty-six million, seven hundred forty thousand, three hundred sixty-nine".