7149642 has 32 divisors (see below), whose sum is σ = 15095808. Its totient is φ = 2252976.

The previous prime is 7149641. The next prime is 7149671. The reversal of 7149642 is 2469417.

It is a happy number.

It is a super-2 number, since 2×7149642² = 102234761456328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7149641) 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, 13963 + ... + 14465.

It is an arithmetic number, because the mean of its divisors is an integer number (471744).

Almost surely, 2^7149642 is an apocalyptic number.

7149642 is an abundant number, since it is smaller than the sum of its proper divisors (7946166).

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

7149642 is a wasteful number, since it uses less digits than its factorization.

7149642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634.

The product of its digits is 12096, while the sum is 33.

The square root of 7149642 is about 2673.8814483817. The cubic root of 7149642 is about 192.6466370199.

The spelling of 7149642 in words is "seven million, one hundred forty-nine thousand, six hundred forty-two".