1651676490 has 24 divisors (see below), whose sum is σ = 4294359108. Its totient is φ = 440447040.

The previous prime is 1651676461. The next prime is 1651676501. The reversal of 1651676490 is 946761561.

1651676490 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1647791649 + 3884841 = 40593^2 + 1971^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon 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, 9175891 + ... + 9176070.

Almost surely, 2^1651676490 is an apocalyptic number.

1651676490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1651676490 is an abundant number, since it is smaller than the sum of its proper divisors (2642682618).

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

1651676490 is a wasteful number, since it uses less digits than its factorization.

1651676490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18351974 (or 18351971 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1651676490 is about 40640.8229493449. The cubic root of 1651676490 is about 1182.0658272838.

The spelling of 1651676490 in words is "one billion, six hundred fifty-one million, six hundred seventy-six thousand, four hundred ninety".