40097400 has 96 divisors (see below), whose sum is σ = 142074240. Its totient is φ = 9164160.

The previous prime is 40097389. The next prime is 40097411. The reversal of 40097400 is 479004.

40097400 = 389² + 390² + ... + 563².

It is an interprime number because it is at equal distance from previous prime (40097389) and next prime (40097411).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 574 + ... + 8973.

It is an arithmetic number, because the mean of its divisors is an integer number (1479940).

Almost surely, 2^40097400 is an apocalyptic number.

40097400 is a gapful number since it is divisible by the number (40) 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 40097400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71037120).

40097400 is an abundant number, since it is smaller than the sum of its proper divisors (101976840).

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

40097400 is a wasteful number, since it uses less digits than its factorization.

40097400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9573 (or 9564 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 40097400 is about 6332.2507846736. The cubic root of 40097400 is about 342.2725504276.

The spelling of 40097400 in words is "forty million, ninety-seven thousand, four hundred".