1451632990 has 32 divisors (see below), whose sum is σ = 2720342880. Its totient is φ = 557042304.

The previous prime is 1451632969. The next prime is 1451632999. The reversal of 1451632990 is 992361541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451632999) 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, 29589 + ... + 61471.

It is an arithmetic number, because the mean of its divisors is an integer number (85010715).

Almost surely, 2^1451632990 is an apocalyptic number.

1451632990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1451632990 is a deficient number, since it is larger than the sum of its proper divisors (1268709890).

1451632990 is a wasteful number, since it uses less digits than its factorization.

1451632990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32076.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 1451632990 is about 38100.3017048422. The cubic root of 1451632990 is about 1132.2759334953.

The spelling of 1451632990 in words is "one billion, four hundred fifty-one million, six hundred thirty-two thousand, nine hundred ninety".