1537274420 has 96 divisors (see below), whose sum is σ = 3768508800. Its totient is φ = 520819200.

The previous prime is 1537274413. The next prime is 1537274429. The reversal of 1537274420 is 244727351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1537274429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251966 + ... + 257994.

It is an arithmetic number, because the mean of its divisors is an integer number (39255300).

Almost surely, 2^1537274420 is an apocalyptic number.

1537274420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1537274420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1884254400).

1537274420 is an abundant number, since it is smaller than the sum of its proper divisors (2231234380).

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

1537274420 is a wasteful number, since it uses less digits than its factorization.

1537274420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6129 (or 6127 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 1537274420 is about 39208.0912567801. The cubic root of 1537274420 is about 1154.1186707586.

The spelling of 1537274420 in words is "one billion, five hundred thirty-seven million, two hundred seventy-four thousand, four hundred twenty".