400147434 has 24 divisors (see below), whose sum is σ = 881201412. Its totient is φ = 131195520.

The previous prime is 400147421. The next prime is 400147441. The reversal of 400147434 is 434741004.

It can be written as a sum of positive squares in 2 ways, for example, as 378497025 + 21650409 = 19455^2 + 4653^2 .

It is a junction number, because it is equal to n+sod(n) for n = 400147398 and 400147407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181119 + ... + 183314.

Almost surely, 2^400147434 is an apocalyptic number.

400147434 is an abundant number, since it is smaller than the sum of its proper divisors (481053978).

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

400147434 is a wasteful number, since it uses less digits than its factorization.

400147434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364502 (or 364499 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 400147434 is about 20003.6855104253. The cubic root of 400147434 is about 736.8968138583.

Adding to 400147434 its reverse (434741004), we get a palindrome (834888438).

The spelling of 400147434 in words is "four hundred million, one hundred forty-seven thousand, four hundred thirty-four".