40387662 has 72 divisors (see below), whose sum is σ = 105370200. Its totient is φ = 11134368.

The previous prime is 40387649. The next prime is 40387663. The reversal of 40387662 is 26678304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40387663) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24789 + ... + 26367.

It is an arithmetic number, because the mean of its divisors is an integer number (1463475).

Almost surely, 2^40387662 is an apocalyptic number.

40387662 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40387662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52685100).

40387662 is an abundant number, since it is smaller than the sum of its proper divisors (64982538).

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

40387662 is a wasteful number, since it uses less digits than its factorization.

40387662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1620 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 40387662 is about 6355.1287949183. The cubic root of 40387662 is about 343.0964604449.

The spelling of 40387662 in words is "forty million, three hundred eighty-seven thousand, six hundred sixty-two".