40253004 has 96 divisors (see below), whose sum is σ = 117626880. Its totient is φ = 11793600.

The previous prime is 40252987. The next prime is 40253011. The reversal of 40253004 is 40035204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36282 + ... + 37374.

It is an arithmetic number, because the mean of its divisors is an integer number (1225280).

Almost surely, 2^40253004 is an apocalyptic number.

40253004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40253004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58813440).

40253004 is an abundant number, since it is smaller than the sum of its proper divisors (77373876).

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

40253004 is a wasteful number, since it uses less digits than its factorization.

40253004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40253004 is about 6344.5255141736. The cubic root of 40253004 is about 342.7147256719.

Adding to 40253004 its reverse (40035204), we get a palindrome (80288208).

The spelling of 40253004 in words is "forty million, two hundred fifty-three thousand, four".