348637940 has 36 divisors (see below), whose sum is σ = 851675076. Its totient is φ = 119532672.

The previous prime is 348637909. The next prime is 348637951. The reversal of 348637940 is 49736843.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 52591504 + 296046436 = 7252^2 + 17206^2 .

It is a junction number, because it is equal to n+sod(n) for n = 348637891 and 348637900.

It is a congruent number.

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, 176897 + ... + 178856.

It is an arithmetic number, because the mean of its divisors is an integer number (23657641).

Almost surely, 2^348637940 is an apocalyptic number.

It is an amenable number.

348637940 is an abundant number, since it is smaller than the sum of its proper divisors (503037136).

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

348637940 is a wasteful number, since it uses less digits than its factorization.

348637940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355776 (or 355767 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 348637940 is about 18671.8488639984. The cubic root of 348637940 is about 703.8145091759.

The spelling of 348637940 in words is "three hundred forty-eight million, six hundred thirty-seven thousand, nine hundred forty".