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40374013 = 81149783
BaseRepresentation
bin1001101000000…
…0111011111101
32210222012201211
42122000323331
540313432023
64001204421
71000113331
oct232007375
983865654
1040374013
1120876659
1211630711
138497b64
14550d7c1
153827a0d
hex2680efd

40374013 has 4 divisors (see below), whose sum is σ = 40424608. Its totient is φ = 40323420.

The previous prime is 40373951. The next prime is 40374029. The reversal of 40374013 is 31047304.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40374013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40374413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24081 + ... + 25702.

It is an arithmetic number, because the mean of its divisors is an integer number (10106152).

It is a 798-hyperperfect number.

Almost surely, 240374013 is an apocalyptic number.

It is an amenable number.

40374013 is a deficient number, since it is larger than the sum of its proper divisors (50595).

40374013 is an equidigital number, since it uses as much as digits as its factorization.

40374013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50594.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 40374013 is about 6354.0548471035. The cubic root of 40374013 is about 343.0578063033.

The spelling of 40374013 in words is "forty million, three hundred seventy-four thousand, thirteen".

Divisors: 1 811 49783 40374013