761421490 has 8 divisors (see below), whose sum is σ = 1370558700. Its totient is φ = 304568592.

The previous prime is 761421487. The next prime is 761421539. The reversal of 761421490 is 94124167.

It can be written as a sum of positive squares in 2 ways, for example, as 756965169 + 4456321 = 27513^2 + 2111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 38071065 + ... + 38071084.

Almost surely, 2^761421490 is an apocalyptic number.

761421490 is a deficient number, since it is larger than the sum of its proper divisors (609137210).

761421490 is a wasteful number, since it uses less digits than its factorization.

761421490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76142156.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 761421490 is about 27593.8668910321. The cubic root of 761421490 is about 913.1491306584.

The spelling of 761421490 in words is "seven hundred sixty-one million, four hundred twenty-one thousand, four hundred ninety".