400047294 has 16 divisors (see below), whose sum is σ = 800860032. Its totient is φ = 133221528.

The previous prime is 400047283. The next prime is 400047341. The reversal of 400047294 is 492740004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24984 + ... + 37739.

It is an arithmetic number, because the mean of its divisors is an integer number (50053752).

Almost surely, 2^400047294 is an apocalyptic number.

400047294 is an abundant number, since it is smaller than the sum of its proper divisors (400812738).

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

400047294 is a wasteful number, since it uses less digits than its factorization.

400047294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63791.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 400047294 is about 20001.1823150533. The cubic root of 400047294 is about 736.8353373480.

Adding to 400047294 its reverse (492740004), we get a palindrome (892787298).

The spelling of 400047294 in words is "four hundred million, forty-seven thousand, two hundred ninety-four".