1086402240 has 896 divisors, whose sum is σ = 5056266240. Its totient is φ = 212889600.

The previous prime is 1086402209. The next prime is 1086402271. The reversal of 1086402240 is 422046801.

1086402240 is a `hidden beast` number, since 10 + 8 + 6 + 402 + 240 = 666.

It is an interprime number because it is at equal distance from previous prime (1086402209) and next prime (1086402271).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15301405 + ... + 15301475.

Almost surely, 2^1086402240 is an apocalyptic number.

1086402240 is a gapful number since it is divisible by the number (10) 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 1086402240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528133120).

1086402240 is an abundant number, since it is smaller than the sum of its proper divisors (3969864000).

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

1086402240 is a wasteful number, since it uses less digits than its factorization.

1086402240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1086402240 is about 32960.6164990887. The cubic root of 1086402240 is about 1028.0089225911.

The spelling of 1086402240 in words is "one billion, eighty-six million, four hundred two thousand, two hundred forty".