40029619 has 24 divisors (see below), whose sum is σ = 48139920. Its totient is φ = 33175296.

The previous prime is 40029617. The next prime is 40029631. The reversal of 40029619 is 91692004.

It is a happy number.

It is not a de Polignac number, because 40029619 - 2¹ = 40029617 is a prime.

It is a super-2 number, since 2×40029619² = 3204740794570322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40029617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292119 + ... + 292255.

It is an arithmetic number, because the mean of its divisors is an integer number (2005830).

Almost surely, 2^40029619 is an apocalyptic number.

40029619 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

40029619 is a deficient number, since it is larger than the sum of its proper divisors (8110301).

40029619 is a wasteful number, since it uses less digits than its factorization.

40029619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 40029619 is about 6326.8964745758. The cubic root of 40029619 is about 342.0795814713.

The spelling of 40029619 in words is "forty million, twenty-nine thousand, six hundred nineteen".