7542045 has 64 divisors (see below), whose sum is σ = 16035840. Its totient is φ = 3288384.

The previous prime is 7542023. The next prime is 7542047. The reversal of 7542045 is 5402457.

It is not a de Polignac number, because 7542045 - 2⁵ = 7542013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7542047) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21562 + ... + 21908.

It is an arithmetic number, because the mean of its divisors is an integer number (250560).

Almost surely, 2^7542045 is an apocalyptic number.

It is an amenable number.

7542045 is an abundant number, since it is smaller than the sum of its proper divisors (8493795).

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

7542045 is a wasteful number, since it uses less digits than its factorization.

7542045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 7542045 is about 2746.2783908410. The cubic root of 7542045 is about 196.1084797933.

The spelling of 7542045 in words is "seven million, five hundred forty-two thousand, forty-five".