400342022 has 8 divisors (see below), whose sum is σ = 610691400. Its totient is φ = 196778224.

The previous prime is 400342003. The next prime is 400342039. The reversal of 400342022 is 220243004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1696247 + ... + 1696482.

It is an arithmetic number, because the mean of its divisors is an integer number (76336425).

Almost surely, 2^400342022 is an apocalyptic number.

400342022 is a deficient number, since it is larger than the sum of its proper divisors (210349378).

400342022 is a wasteful number, since it uses less digits than its factorization.

400342022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392790.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 400342022 is about 20008.5487229834. The cubic root of 400342022 is about 737.0162432052.

Adding to 400342022 its reverse (220243004), we get a palindrome (620585026).

The spelling of 400342022 in words is "four hundred million, three hundred forty-two thousand, twenty-two".