6155490 has 64 divisors (see below), whose sum is σ = 16837632. Its totient is φ = 1425600.

The previous prime is 6155489. The next prime is 6155497. The reversal of 6155490 is 945516.

6155490 = T₂₆₈ + T₂₆₉ + ... + T₃₈₂.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (6155497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7185 + ... + 7995.

It is an arithmetic number, because the mean of its divisors is an integer number (263088).

Almost surely, 2^6155490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6155490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8418816).

6155490 is an abundant number, since it is smaller than the sum of its proper divisors (10682142).

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

6155490 is a wasteful number, since it uses less digits than its factorization.

6155490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 6155490 is about 2481.0259974454. The cubic root of 6155490 is about 183.2683810315.

It can be divided in two parts, 615 and 5490, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 6155490 in words is "six million, one hundred fifty-five thousand, four hundred ninety".