1676390408 has 32 divisors (see below), whose sum is σ = 3918836160. Its totient is φ = 653138880.

The previous prime is 1676390399. The next prime is 1676390431. The reversal of 1676390408 is 8040936761.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 1360091 + ... + 1361322.

It is an arithmetic number, because the mean of its divisors is an integer number (122463630).

Almost surely, 2^1676390408 is an apocalyptic number.

It is an amenable number.

1676390408 is an abundant number, since it is smaller than the sum of its proper divisors (2242445752).

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

1676390408 is a wasteful number, since it uses less digits than its factorization.

1676390408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721437 (or 2721433 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1676390408 is about 40943.7468729964. The cubic root of 1676390408 is about 1187.9323858929.

The spelling of 1676390408 in words is "one billion, six hundred seventy-six million, three hundred ninety thousand, four hundred eight".