1453731390 has 48 divisors (see below), whose sum is σ = 3832953696. Its totient is φ = 382200000.

The previous prime is 1453731371. The next prime is 1453731397. The reversal of 1453731390 is 931373541.

1453731390 is a `hidden beast` number, since 1 + 4 + 537 + 31 + 3 + 90 = 666.

It is a super-2 number, since 2×1453731390² = 4226669908542664200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453731397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107361 + ... + 120140.

It is an arithmetic number, because the mean of its divisors is an integer number (79853202).

Almost surely, 2^1453731390 is an apocalyptic number.

1453731390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1453731390 is an abundant number, since it is smaller than the sum of its proper divisors (2379222306).

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

1453731390 is a wasteful number, since it uses less digits than its factorization.

1453731390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227585 (or 227582 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 1453731390 is about 38127.8295999130. The cubic root of 1453731390 is about 1132.8212558778.

The spelling of 1453731390 in words is "one billion, four hundred fifty-three million, seven hundred thirty-one thousand, three hundred ninety".