1373678406 has 32 divisors (see below), whose sum is σ = 3055518720. Its totient is φ = 457457832.

The previous prime is 1373678377. The next prime is 1373678419. The reversal of 1373678406 is 6048763731.

It is a super-2 number, since 2×1373678406² = 3773984726221401672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48031 + ... + 71093.

It is an arithmetic number, because the mean of its divisors is an integer number (95484960).

Almost surely, 2^1373678406 is an apocalyptic number.

1373678406 is an abundant number, since it is smaller than the sum of its proper divisors (1681840314).

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

1373678406 is a wasteful number, since it uses less digits than its factorization.

1373678406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24177 (or 24171 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 1373678406 is about 37063.1677815051. The cubic root of 1373678406 is about 1111.6336645663.

The spelling of 1373678406 in words is "one billion, three hundred seventy-three million, six hundred seventy-eight thousand, four hundred six".