354420404 has 12 divisors (see below), whose sum is σ = 667946244. Its totient is φ = 163578624.

The previous prime is 354420389. The next prime is 354420421. The reversal of 354420404 is 404024453.

It can be written as a sum of positive squares in 2 ways, for example, as 30780304 + 323640100 = 5548^2 + 17990^2 .

It is a super-2 number, since 2×354420404² = 251227645543046432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 3407837 + ... + 3407940.

It is an arithmetic number, because the mean of its divisors is an integer number (55662187).

Almost surely, 2^354420404 is an apocalyptic number.

It is an amenable number.

354420404 is a deficient number, since it is larger than the sum of its proper divisors (313525840).

354420404 is a wasteful number, since it uses less digits than its factorization.

354420404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6815794 (or 6815792 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 354420404 is about 18826.0565174972. The cubic root of 354420404 is about 707.6843182863.

Adding to 354420404 its reverse (404024453), we get a palindrome (758444857).

The spelling of 354420404 in words is "three hundred fifty-four million, four hundred twenty thousand, four hundred four".