1540472 has 32 divisors (see below), whose sum is σ = 3136320. Its totient is φ = 706560.

The previous prime is 1540453. The next prime is 1540477. The reversal of 1540472 is 2740451.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6272 + ... + 6512.

It is an arithmetic number, because the mean of its divisors is an integer number (98010).

2^1540472 is an apocalyptic number.

It is an amenable number.

1540472 is an abundant number, since it is smaller than the sum of its proper divisors (1595848).

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

1540472 is a wasteful number, since it uses less digits than its factorization.

1540472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 1540472 is about 1241.1575242490. The cubic root of 1540472 is about 115.4918317843.

The spelling of 1540472 in words is "one million, five hundred forty thousand, four hundred seventy-two".