1490416638 has 16 divisors (see below), whose sum is σ = 2996280336. Its totient is φ = 494231040.

The previous prime is 1490416621. The next prime is 1490416651. The reversal of 1490416638 is 8366140941.

It is a self number, because there is not a number n which added to its sum of digits gives 1490416638.

It is a congruent number.

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, 642373 + ... + 644688.

It is an arithmetic number, because the mean of its divisors is an integer number (187267521).

Almost surely, 2^1490416638 is an apocalyptic number.

1490416638 is an abundant number, since it is smaller than the sum of its proper divisors (1505863698).

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

1490416638 is a wasteful number, since it uses less digits than its factorization.

1490416638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287259.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1490416638 is about 38605.9145468670. The cubic root of 1490416638 is about 1142.2712077074.

The spelling of 1490416638 in words is "one billion, four hundred ninety million, four hundred sixteen thousand, six hundred thirty-eight".