1970259690 has 64 divisors (see below), whose sum is σ = 5408628480. Its totient is φ = 449971200.

The previous prime is 1970259677. The next prime is 1970259713. The reversal of 1970259690 is 969520791.

It is a super-2 number, since 2×1970259690² = 7763846492077792200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309540 + ... + 315840.

It is an arithmetic number, because the mean of its divisors is an integer number (84509820).

Almost surely, 2^1970259690 is an apocalyptic number.

1970259690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1970259690 is an abundant number, since it is smaller than the sum of its proper divisors (3438368790).

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

1970259690 is a wasteful number, since it uses less digits than its factorization.

1970259690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7807.

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 1970259690 is about 44387.6073921540. The cubic root of 1970259690 is about 1253.6447627676.

The spelling of 1970259690 in words is "one billion, nine hundred seventy million, two hundred fifty-nine thousand, six hundred ninety".