1290620590 has 32 divisors (see below), whose sum is σ = 2665358784. Its totient is φ = 440770560.

The previous prime is 1290620587. The next prime is 1290620593. The reversal of 1290620590 is 950260921.

It is an interprime number because it is at equal distance from previous prime (1290620587) and next prime (1290620593).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290620593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17881 + ... + 53860.

It is an arithmetic number, because the mean of its divisors is an integer number (83292462).

Almost surely, 2^1290620590 is an apocalyptic number.

1290620590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1290620590 is an abundant number, since it is smaller than the sum of its proper divisors (1374738194).

1290620590 is a wasteful number, since it uses less digits than its factorization.

1290620590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72012.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1290620590 is about 35925.2082805375. The cubic root of 1290620590 is about 1088.7617704160.

The spelling of 1290620590 in words is "one billion, two hundred ninety million, six hundred twenty thousand, five hundred ninety".